等腰直角三角形和五边形波导截止特性和衰减特性分析  

Analysis of Attenuation Coefficient and Cutoff Character in Isosceles Right Triangular Waveguide and Pentagonal Waveguide

作　　者：杨春艳[1] 吉恒[2] 何永进[1] 

机构地区：[1]玉溪师范学院物理与教育技术系,云南玉溪653100 [2]通海县第二中学,云南通海652701

出　　处：《玉溪师范学院学报》2007年第3期37-40,共4页Journal of Yuxi Normal University

摘　　要：用有限差分法计算等腰直角三角形波导和五边形波导的截止频率和衰减常数,用Fortran进行编程,计算结果与参考值非常吻合.通过对新型五边形波导的分析,体现了数值计算方法的优越性.This paper describes the application of finite difference method and Fortran program to obtaining the cutoff frequency and attenuation coefficient in isosceles right triangular waveguide and pentagonal waveguide.The result of calculation agrees very well with the reference value.The advantage of numerical calculation manifests itself in the analysis of new-type pentagonal waveguide.

关 键 词：有限差分法 衰减常数 截止频率 截止波数 

分 类 号：O451[理学—无线电物理]